Prevention and control measures of falling flowers of eggplant in greenhouse

There are many reasons for eggplant falling flowers, such as excessive vegetative growth, weak plant growth, too dry or too high humidity, high temperature or lack of light. It is suggested that vegetable farmers should determine the causes of falling flowers according to the actual situation in the greenhouse last year, and then take relative measures to prevent eggplant falling flowers again this year. Prevention and control measures of vegetative growth: squatting seedlings in time, properly controlling water and fertilizer during squatting stage, ploughing and loosening soil, so that vegetative growth can be transferred to reproductive growth in time. The prevention and control measures of weak plant growth: strong seedlings should be selected, fertilizers should be added at the same time, root and seedling should be promoted, and management of thinning flowers and limiting fruit should be carried out according to plant growth. Prevention and control measures of lack of light: increase the time of light and the amount of light. The grass curtain should be uncovered early and late in sunny days to prolong the lighting time, and the curtain should also be opened to absorb scattered light on cloudy days and shorten the opening time on rainy days. You can also take measures such as hanging on the back wall, laying reflective screens on the ground, and replenishing light with fluorescent lamps at night to increase illumination. Temperature control: during flowering, the daytime temperature was controlled at 25 ℃ ~ 30 ℃, and the night temperature was reduced to 15 ℃ ~ 17 ℃. Humidity control: the air humidity is generally about 80%. When it is dry, it should be irrigated in time to keep the soil moist. When the humidity is too high, ventilation and dehumidification should be done in time to avoid flooding irrigation to increase humidity.